What can I do to get confused about height if a guy is short or tall?

I can get a little confused about guys' height and what is short versus what is tall for men. According to the internet, the average height for men in England is 5 ft 9 in. I don't like guys or am not attracted to very tall men. I don't want the guy to be too tall if we're trying to have a relationship. I'm just a bit shorter than the average female (5ft 3in). I think 5ft in height. I prefer guys who are shorter than me or of average height. While dating, I wasn't sure which classes were shorter and which were tall, but I didn't want to date tall men. I didn't want a date or a relationship. In the meantime, I will keep searching to see if I can find a shorter guy or an average height guy.
What can I do to get confused about height if a guy is short or tall?
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